最近地震发生得比较频繁。

zuìjìn dìzhèn fāshēng dé bǐjiào pínfán.

Earthquakes have been happening quite frequently lately.

这个地区的降雨比较频繁。

zhège dìqū de jiàngyǔ bǐjiào pínfán.

Rainfall is relatively frequent in this region.

他的工作需要频繁出差。

tā de gōngzuò xūyào pínfán chūchāi.

His job requires frequent business trips.